| 摘要 |
<p>PURPOSE:To provide a sludge waste water treatment apparatus preventing that the water channel due to a supernatant liquid is formed to a settled sludge bed and settled sludge is stagnated on the bottom of a sedimentation tank as it is and capable of drawing out settled sludge efficiently and continuously while discharging a supernatant liquid. CONSTITUTION:Drain pipes 101, 201 for discharging settled sludge formed by arranging perforated pipes having drain holes provided thereto in a dispersed state are provided to the flat bottom parts of sedimentation tanks 1, 2 performing the sedimentation treatment of sludge of waste water, and the sedimentation tanks 1, 2 and the drain pipes 101, 201 are all connected by a circulation route provided with a pump 15.</p> |
